Circuit-closer for fire-alarm circuits.



R. D. TIFFANY. I CIRCUIT CLOSER FOR FIRE ALARM OIBIHIITS.

APPLICATION FILED MAY 29, 1908.

Patented F6b.9, 1909.

2 SHEETS-SHEET 1.

I! E II In r R. D.TI FPANY. CIRCUIT CLOSER FOR FIRE ALARM CIRGUITS.

' APPLICATION FILED MAY 29, 1908.

91 1,921.v I Patented Feb. 9, 1909.

' citizen of the United States, residing at Bell- .f andl'morer T are deslgne for use In connection with a fire which are designed to automatically ose the fire alarm circuit uponrise of the tern-- tion is'to may be a I which the device will operate. to close thecircuit. Z v i circuit, infull 1 Tohall it may concern:

,W'ashington, have invented certain new and,

1 extension formed integral therewith, a "sup f 330 "ROSS D.TIYFFANY,IOF BELLINGHAM, wasnrueron.

N 1,92 1 I Specification.- of

cmcUrnc osE-R r03 Fran-ALARM c'movrr's;

Letters was. A f" Patented Feb. 9 1909.

Application med May 29, 1908. Serial N x-435,781; I

Be it knownthat I, Ross'D. TIFFANY, a

ingham,in the county of Whatcom,'-' State'of useful Improvements. in Circuit-Closers for Fire-Alarm Circuitsgiand I. do hereby dewill enable others-skilled in the art to which This invention relates to circuitf closers articularly to that class which alarm circuit, the object ofthe inventionbe-= mg toprovide a circuit closer of thet p'e' perature of aroom above a predetermined rimary objects of the invengrov dea device of this'type which justed or regulated so as to close the fire. alarm circuit at any desired temperature and in carrying out my invention 1. provide 'a container 0 ne of the port, a frame slidab e upon the. support means forliiniting the downward movement of the frame,'-the frame being formed with a portionfor limiting the ddwnward move-- ment-of-the p1unger,-and ti e frame. being adjustable upon the supporttoadjust the plunger 'within thecontainer and in. this: nianner predetermine jthe temperature at" In v the accompanying dravving's, Figure r is aview in elevationof the circuiticlos'erf embodying my invention, theplunger of the said circuit closer being shown in normal-1 position. Fig.- 2 is a similar View but showl mg the plunger ra sed-to position to closethe is; and raised-beyond 'tl iis--;

point in dotted'lirie; Fig. 3 is aside elevation position, F ig. lis afvertical sectional View indeta'il through the device, and, Fig.-5' i' s' a, detail erspective View o r annexpansible fluid such as alcohol or mercury, a, plunger work-I mg n sand container or rather mja barrel;

the numeral I and formed integral with which is an annular bracket 11 upon'whichn is seated the spherical body l2 'ofan expansible, fluid container the saidbody being formed with a barrel extension '1-3the-bore of whichis cylindrical to receive a plunger; as-will now be described,"

- "The plunger mentionedabove is indicated by the numeral 14 and s provided at its lower endwit'h suitable packing rings 15, the

plungerbeing received in thebarrel as above mentioned and being' p'assed throu h a pack- 1? the said barrel. The upper end ofthe plungeris Jtur'ned at right-angles as indicated by the numeral 17 and is. formedat its extremity 1 with abearing 18 passing upwardly throng which is'a rod support 19 which is prefer-' plate or base .10 of th'e'circuit closer an projects forwardly and: thence vertically therefrom, 'Adjustably secured'by means of ase't screw 20 upon the said rod support 19 is .acollar 21 and resting upon th s-collar i and loose upon. the said support is a. frame which is comprised of aconnectingjportion 22 and' spaced portions 23 and 2.4, the said spaced portions projecting forwardly from the connectingportion22 and-the portion 21 being i'abovethe portion 23 both of saidiiportionsformed- ,atrtheir extreniities 1 with bearings 25 through which the rod. sup- 'iwrlt 9'pas'ses. .3 1

. paced portion ,23 of theframe 111st [mentioned-rests directly upon the collar-i321 it will be'understood' that the downward sliding movement of the frame-upon the rod support '19 limited b'ythis 'collar it being also unders wodthat thelcollar may be ad :i'r'lent ofthe frame.

to adjustbfregulate the. downwardmove- T he bearing end ofjthe laterally termed portion '17 ofthe plunger as" stated aboYQ slidably-e-i iga'ged with loo I r H r-therebeingfa.contacti26 fiized upon the said 1 of the device thea'plunger being in normal ;late 1':ally termed "end 17 Y ofxthe plunger and I another port onv r26 .111 w u with 20 951 in its verb 1;: of my: 0r

biting "e Ara-01 y sald plunge said eeniwng-be-mg 5% upon file 11 i. in contact the Le-$81116 taro, in presence 

